How long does a 3M 1873v FFP3 mask last for once used? (service limit) is it reusable?

Question: I work in an area requiring these masks on for infection control. We used to wear the duckbill (FFP2) masks for TB single use only. I'm just not sure of its service limit and is it really reusable? Apparently we have to wear one for multi-drug resistant TB. These things do cost dearly(£249.50 box of 10). I would appreciate your input. Ta!

Answers:
Use of the masks are to be only used with only one patient. From what I understand, they are not to be used outside of the room.

Source(s):
work in a hospital.

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